import requests
import re
import json
from requests.exceptions import RequestException
from multiprocessing import Pool

def get_one_page(url):
	try:
		headers = {"User-Agent":"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36"}
		response = requests.get(url,headers=headers)
		if response.status_code ==200:
			return response.text
		return None
	except RequestException as e:
		return None

def parse_one_page(html):
	pattern = re.compile('<dd>.*?board-index.*?>(\d+)</i>.*?data-src="(.*?)".*?name">'
        + '<a.*?>(.*?)</a>.*?"star">(.*?)</p>.*?releasetime">(.*?)</p>'
        + '.*?integer">(.*?)</i>.*?fraction">(.*?)</i>.*?</dd>', re.S)
	items = re.findall(pattern, html)
	for item in items:
		yield {
			'index': item[0],
			'image': item[1],
			'title': item[2],
			'actor': item[3].strip()[3:],
			'time': item[4].strip()[5:],
			'score': item[5]+item[6]
		}

def write_to_file(content):
	with open('result.txt', 'a', encoding='utf-8') as f:
		f.write(json.dumps(content, ensure_ascii=False) + '\n')
		f.close()

def main(offset):
	url = 'http://maoyan.com/board/4?offset=' + str(offset)
	html = get_one_page(url)
	for item in parse_one_page(html):
		# print(item)
		write_to_file(item)

if __name__ == '__main__':
	pool = Pool()
	pool.map(main, [i*10 for i in range(10)])